|本期目录/Table of Contents|

[1]杨艳,田治国.盐胁迫下不同形态硒对王族海棠硒累积、离子稳态及生理生化的影响[J].江苏农业科学,2024,52(2):136-143.
 Yang Yan,et al.Influences of different forms of selenium on selenium accumulation,ion homeostasis and physiological and biochemical characteristics of Malus royalty under salt stress[J].Jiangsu Agricultural Sciences,2024,52(2):136-143.
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盐胁迫下不同形态硒对王族海棠硒累积、离子稳态及生理生化的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第52卷
期数:
2024年第2期
页码:
136-143
栏目:
园艺与林学
出版日期:
2024-02-20

文章信息/Info

Title:
Influences of different forms of selenium on selenium accumulation,ion homeostasis and physiological and biochemical characteristics of Malus royalty under salt stress
作者:
杨艳田治国
常州大学园林与设计学院,江苏常州 213159
Author(s):
Yang Yanet al
关键词:
盐胁迫氧化应激光合特征抗氧化酶系统盐调控基因
Keywords:
-
分类号:
S685.990.1
DOI:
-
文献标志码:
A
摘要:
设置150 mmol/L盐胁迫处理(SS)及盐胁迫下施用纳米硒(Se0)、亚硒酸钠(Se4+)、硒代半胱氨酸(Se2-)及复合处理(Se0+Se4+、Se0+Se2-、Se4++Se2-、Se0+Se4++Se2-),以无盐胁迫处理(CK)为对照,探索了不同形态硒对盐胁迫下王族海棠硒累积、离子稳态及相关生理生化的影响。结果表明,盐胁迫下王族海棠光合生理受到显著影响,氧化产物累积增加、离子稳态失衡。盐胁迫下不同形态硒及其组合处理均在一定程度上增加了光合色素(叶绿素a、叶绿素b、类胡萝卜素)含量、改善了光合特征参数(PnCiTrGs),提高了抗氧化酶(SOD、CAT、POD)活性,降低了脂质过氧化物(LPO)、超氧阴离子自由基(O-2·)、过氧化氢(H2O2)含量,上调表达了相关盐调控基因(AOX、SOS1、NHX1),整体而言以Se0+Se4+、Se0+Se4++Se2-处理效果较佳。此外,盐胁迫下,Se0+Se4+、Se0+Se4++Se2-处理的Se、K含量显著增加、Na含量显著降低,使得K含量/Na含量提高,均以Se0+Se4+优于Se0+Se4++Se2-处理。综上,盐胁迫下不同形态硒及其组合处理可保护王族海棠光合色素降解和提高光合效率、激活抗氧化防御系统、诱导盐调控基因表达上调,并通过增加Se、K含量和降低Na吸收维持离子稳态从而缓解盐分胁迫,以纳米硒与亚硒酸钠组合处理(Se0+Se4+)效果最佳。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2023-06-19
基金项目:国家自然科学基金(编号:31700612);江苏省高校科学研究项目(编号:2019SJA1090)。
作者简介:杨艳(1979—),女,江苏徐州人,硕士,讲师,主要从事园林植物与观赏园艺研究。E-mail:yangyantnh@cczu.edu.cn。
通信作者:田治国,博士,副教授,主要从事园林植物生理生态研究。E-mail:Tiangz@163.com。
更新日期/Last Update: 2024-01-20